Jonas Quinn's mentor, Dr. Keiran, visits Earth with the leader of Kelowna and an ambassador. Tensions are escalating and they see no alternative but to build and use a nahquadria bomb - a weapon of cataclysmic effect and long term consequence. Stargate Command is faced with giving them superior weapons or "forcing" them to use a deadly device. But Dr. Keiran might have an alternative - a mysteriou...